甘肃安南坝野骆驼国家级自然保护区兽类区系和多样性分析

Mammalian Fauna and Diversity in Gansu Annanba Wild Camel National Nature Reserve

为了查清甘肃安南坝野骆驼国家级自然保护区当前兽类的本底资源、更新兽类编目,为生物多样性监测和科学研究提供基础资料,2018—2020年,对该保护区中的兽类资源进行调查和区系分析,并将调查结果与2000—2002年保护区的调查结果进行比较。结果表明:(1)保护区共有兽类7目、16科、40属、56种,是甘肃省荒漠兽类和珍稀濒危保护兽类的集中分布区和重要栖息地;(2)兽类区系中古北界成分占绝对优势,鼠兔科Ochotonidae、跳鼠科Dipodidae和猫科Felidae种类是其中的代表,且鼠兔科也是保护区中国特有种的代表科;(3)啮齿目Rodentia和食肉目Carnivora是保护区种类最多的2目,而且具有较高的物种多样性指数;(4)种的分布型以属于北方的种为主,中亚型种占优势;(5)兽类区系成分具有相对的独立性;(6)保护区兽类分为4个动物群:戈壁动物群、裸岩动物群、沙漠动物群和山地草原动物群;(7)更新保护区兽类名录,新增记录15种,核减青藏高原特有种1种——藏原羚Procapra picticaudata。

Investigations on mammal resources were carried out from 2018 to 2020 in Annanba Wild Camel National Nature Reserve, Gansu province.The results showed that in the Reserve, there were 56 species of mammals, belonging to 40 genera of 16 families and 7 orders. The Palaearctic composition of the mammal fauna was dominant, like Dipodidae, Felidae and Ochotonidae in the Family class. Ochotonidae is endemic in China.Rodentia and Carnivora had the most species among orders with higher species diversity. In species class, the mammalian fauna belongs to the composition of the Northern type, with abundant species of the Central Asian type. The fauna of mammals is relatively independent. The mammals of the reserve could be divided into four faunas: gobi fauna, bare rock fauna, desert fauna and mountain grassland fauna. The list of mammals was updated compared with that in 2000-2002, 15 species were newly recorded, and Procapra picticaudata was deleted.